CN218512203U - Testing device for wood particle compression molding constitutive model - Google Patents
Testing device for wood particle compression molding constitutive model Download PDFInfo
- Publication number
- CN218512203U CN218512203U CN202221993758.6U CN202221993758U CN218512203U CN 218512203 U CN218512203 U CN 218512203U CN 202221993758 U CN202221993758 U CN 202221993758U CN 218512203 U CN218512203 U CN 218512203U
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- compression
- connecting plate
- assembly
- compression cylinder
- pressure
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- 239000002245 particle Substances 0.000 title claims abstract description 24
- 239000002023 wood Substances 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000000748 compression moulding Methods 0.000 title claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 67
- 230000006835 compression Effects 0.000 claims abstract description 64
- 238000004154 testing of material Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a wood particle compression molding constitutive model testing device with simple structure and stable operation, which mainly comprises a compression component, a compression cylinder, a compensation ring, a connecting plate and a bearing component, and a material testing machine provides power; the compression assembly consists of a piston assembly, a rubber ring and a bolt and is used for compressing wood particles; the compression cylinder is made of thin-wall aluminum or steel plates and is mainly used for containing wood particles; the middle part of the connecting plate is provided with a circular groove for placing the compression cylinder, and the periphery of the connecting plate is provided with a through hole for connecting the pressure-bearing assembly; the pressure-bearing assembly mainly comprises a pressure-bearing plate and a lower chuck, is used for supporting the connecting plate and is connected with the testing machine.
Description
Technical Field
The utility model relates to a wood particles compression moulding constitutive model testing arrangement.
Background
The artificial board is generally formed by crushing and softening branches, barks and wood processing waste, adding an adhesive, and pressing at high temperature, has the characteristics of high strength, difficult deformation, difficult cracking, convenient processing and manufacturing and the like, and is widely applied to the industries of furniture, indoor decoration, packaging and the like. In the manufacturing process of the artificial board, the raw materials are generally required to be firstly crushed into particles, and particle material compression molding constitutive models obtained by crushing different raw materials are different, so that the pressure required by compression molding is different, and therefore, in the manufacturing process of the artificial board, understanding of the compression molding constitutive models of the wood particles is crucial to formulation of a molding process. The utility model provides a timber granule compression moulding constitutive model testing arrangement in the aspect of simple structure, operation to simplifying artificial panel process development flow, improves production efficiency and has certain meaning.
SUMMERY OF THE UTILITY MODEL
The technical scheme of the utility model:
in order to solve the problem, the utility model provides a simple structure, convenient operation, the reliable wood particles compression moulding constitutive model testing arrangement of operation, concrete structure and theory of operation are as follows.
The wood particle compression molding constitutive model testing device is composed of a compression assembly, a compression cylinder, a compensation ring, a connecting plate and a pressure-bearing assembly, and a universal material testing machine provides power for testing the compression constitutive model.
Furthermore, the compression assembly consists of a piston assembly, a rubber ring and a bolt; the piston assembly is mainly used for compressing wood particles, and the rubber ring is fixed on the side surface of the piston by adopting a bolt and is used for reducing the friction force between the piston and the compression cylinder;
furthermore, the piston assembly consists of an upper chuck and a piston, and a bolt hole is formed in the side surface of the piston and used for fixing the rubber ring; the upper chuck is used for connecting a material testing machine, and the piston is used for compressing wood particles.
Furthermore, the compression cylinder is made of thin-wall aluminum or steel plates and is mainly used for containing wood particles; when the device works, the outer side surface of the compression cylinder is pasted with a strain gauge, and the annular strain of the compression cylinder wall in the compression process is measured by adopting a resistance strain method.
Furthermore, a circular groove is formed in the middle of the connecting plate and used for placing the compression cylinder; the periphery is provided with through holes for connecting the pressure bearing assembly.
Furthermore, the compression cylinder place in the circular recess of connecting plate to place the compensation circle between the side of circular recess and the compression cylinder lateral surface, guarantee on the one hand that the compression cylinder keeps the centering in compression process, on the other hand guarantee that the compression cylinder can be in timber granule compression process, radial displacement and hoop strain do not receive the tip restraint.
Furthermore, the compensation ring is made of rubber materials with the elastic modulus far lower than that of the compression cylinder, and the lower end part of the compression cylinder is restrained without influencing the radial displacement and the annular strain of the compression cylinder.
Furthermore, the pressure bearing assembly consists of a pressure bearing plate and a lower chuck, wherein through holes are formed in the periphery of the pressure bearing plate and fixedly connected with the connecting plate by adopting double-ended studs; the upper end of the lower chuck is fixed with the bearing plate, and the lower end of the lower chuck is fixedly connected with the material testing machine.
The utility model discloses an actively the effect:
the utility model discloses simple structure, low cost, control convenience, compression moulding constitutive model that can the spot test timber grain, the operation is reliable, and the fault rate is low.
Drawings
FIG. 1 is a general block diagram;
FIG. 2 is a schematic view of a compression assembly;
FIG. 3 is a schematic view of a piston structure;
FIG. 4 is a schematic view of a rubber ring structure;
FIG. 5 is a schematic view of a connection plate structure;
FIG. 6 is a schematic view of a pressure bearing assembly;
in the attached drawings, a compression assembly (1), a compression cylinder (2), a compensation ring (3), a connecting plate (4), a pressure-bearing assembly (5), a piston assembly (101), a rubber ring (102), a bolt (103), an inner side surface (401), a bottom surface (402), a pressure-bearing plate (501), a lower chuck (502), an upper chuck (1011), a piston (1012), a bolt hole (1013) and a stepped hole (1021).
Detailed Description
As shown in attached figure 1, the utility model is composed of a compression component (1), a compression cylinder (2), a compensation ring (3), a connecting plate (4) and a pressure-bearing component (5); the lower end of the compression component (1) is arranged in the compression cylinder (2), and the upper end of the compression component is connected with a material testing machine and is mainly used for compressing wood particles in a test; the compression cylinder (2) is made of thin-wall aluminum or steel plates, is placed on the connecting plate (4), and is used for placing wood particles and providing a compression space in a test; the inner side of the connecting plate (4) is provided with a groove, the periphery of the connecting plate is connected with the pressure-bearing assembly (5) by adopting a stud and a nut, and the connecting plate is used for placing and positioning the compression cylinder (2); the compensating ring (3) is placed between the lower end of the outer wall of the compression cylinder (2) and the grooved wall surface of the connecting plate (4) and is used for positioning the compression cylinder (2) so as to enable the compression cylinder to be aligned with the axis of the circular groove; the upper end of the pressure bearing assembly (5) is connected with the connecting plate (4) through a double-end stud and a nut, and the lower end of the pressure bearing assembly is fixedly connected with the material testing machine.
As shown in fig. 2 and fig. 3, the compression assembly (1) is composed of a piston assembly (101), a rubber ring (102) and a bolt (103); the piston assembly (101) consists of an upper chuck (1011) and a piston (1012), and a circular bolt hole (1013) is formed in the outer side surface of the piston (1012); the upper chuck (1011) is fixed with the material testing machine and is used for providing a compression load; the piston (1012) is arranged inside the compression cylinder (2) and is used for compressing wood particles; the rubber ring (102) is fixed on the outer side of the piston (1012) by adopting a bolt (103), and the outer side of the rubber ring is in contact with the inner wall surface of the compression cylinder (2) for reducing the friction between the compression assembly (1) and the compression cylinder (2).
As shown in fig. 3 and fig. 4, the rubber ring (102) is made of a rubber material with an elastic modulus much smaller than that of the material of the compression cylinder (2) so as to ensure that the constraint on the deformation of the compression cylinder (2) is negligible; the side surface of the rubber ring (102) is provided with 4 through stepped holes (1021), the outer parts of the stepped holes (1021) are hexagonal, the inner sides of the stepped holes (1021) are circular, and bolts (103) are connected with pistons (1012).
As shown in fig. 5, the connecting plate (4) is disc-shaped, a through hole is formed in the outer edge along the axis direction for connecting the pressure-bearing assembly (5), a circular groove is formed in the inner side, the bottom surface (402) of the circular groove is used for placing the compression cylinder (2), and the inner side surface (401) is used for positioning the compensating ring (3).
As shown in fig. 6, the pressure bearing assembly (5) is composed of a pressure bearing plate (501) and a lower chuck (502), a through hole is formed in the outer edge of the pressure bearing plate (501), the pressure bearing plate is fixed with the connecting plate (4) through a stud and a nut, and the lower chuck (502) is fixed with the material testing machine.
When the material testing machine works, the pressure-bearing assembly (5) is fixed on the lower clamping plate of the material testing machine, and then the connecting plate (4) is fixed on the pressure-bearing plate (501) of the pressure-bearing assembly (5) by adopting the stud and the nut; the compression cylinder (2) is placed in a circular groove on the inner side of the connecting plate (4), and the compensating ring (3) is placed to enable the compression cylinder (2) to be aligned with the axial lines of the pressure bearing assembly (5) and the connecting plate (4); placing wood particles inside the compression cylinder (2) and measuring the distance from the upper part of the wood particle layer to the top end of the compression cylinder (2); a strain gauge is attached to the outer wall of the compression cylinder (2) and connected to a resistance strain gauge to measure the circumferential strain of the compression cylinder; putting the compression assembly (1) into the compression cylinder (2), adjusting the position of an upper clamping plate of the material testing machine, and clamping and fixing an upper clamping head (1011) of the piston assembly (101); and starting the material testing machine, driving the compression assembly (1) to move downwards, and recording the compression load, the axial displacement of the compression assembly (1) and the circumferential strain measured by the resistance strain gauge so as to calculate the constitutive model parameters of the wood particles.
Claims (4)
1. A testing device for a wood particle compression molding constitutive model is characterized by comprising a compression assembly (1), a compression cylinder (2), a compensation ring (3), a connecting plate (4) and a pressure-bearing assembly (5), wherein the upper end of the compression assembly (1) is connected with an upper clamping plate of a material testing machine, and the lower end of the compression assembly is placed in the compression cylinder (2); the compression cylinder (2) is placed in a circular groove at the upper part of the connecting plate (4), and the compensation ring (3) is placed between the compression cylinder (2) and the wall surface of the circular groove of the connecting plate (4); the connecting plate (4) is connected with the upper end of the pressure-bearing assembly (5) by adopting a stud and a nut, and the lower end of the pressure-bearing assembly (5) is connected with the lower clamping plate of the material testing machine.
2. A wood particle compression molding constitutive model testing device as claimed in claim 1, wherein the compression assembly (1) is composed of a piston assembly (101), a rubber ring (102) and a bolt (103); the piston assembly (101) consists of an upper chuck (1011) and a piston (1012), and a circular bolt hole (1013) is formed in the outer side surface of the piston (1012); the rubber ring (102) is provided with a through stepped hole (1021) and is fixedly connected with the piston (1012) by a bolt (103).
3. The wood particle compression molding constitutive model testing device as claimed in claim 1, wherein the connecting plate (4) is provided with a circular groove at the center of the upper end, the compression cylinder (2) is placed in the groove, and the compensation ring (3) is adopted for positioning and centering; the outer edge of the connecting plate (4) is provided with a through hole and is fixedly connected with the pressure bearing assembly (5) by adopting a stud and a nut.
4. The wood particle compression molding constitutive model testing device as claimed in claim 1, wherein the bearing assembly (5) is composed of a bearing plate (501) and a lower chuck (502), a through hole is formed in the edge of the bearing plate (501), the bearing plate is connected with the connecting plate (4) through a stud and nut structure, and the lower chuck (502) is used for fixing and connecting a lower clamping plate of a material testing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993758.6U CN218512203U (en) | 2022-08-01 | 2022-08-01 | Testing device for wood particle compression molding constitutive model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993758.6U CN218512203U (en) | 2022-08-01 | 2022-08-01 | Testing device for wood particle compression molding constitutive model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218512203U true CN218512203U (en) | 2023-02-21 |
Family
ID=85207141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221993758.6U Expired - Fee Related CN218512203U (en) | 2022-08-01 | 2022-08-01 | Testing device for wood particle compression molding constitutive model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218512203U (en) |
-
2022
- 2022-08-01 CN CN202221993758.6U patent/CN218512203U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |